HP / Agilent 8720D 40 GHz Microwave Network Analyzer

The HP/Agilent 8720D is a 40 GHz microwave network analyzer engineered for precision S-parameter measurement and characterization of RF/microwave components and systems. Operating from 50 kHz to 40 GHz, it delivers dynamic range exceeding 100 dB at 10 MHz with selectable output power and sophisticated error correction for high-accuracy reflection and transmission analysis across full two-port configurations.

– Technical Specifications

Frequency & Power
• Frequency range: 50 kHz to 40 GHz
• Output power: -70 dBm to +10 dBm (user-selectable)
• Dynamic range: Greater than 100 dB at 10 MHz (decreases with frequency)
• Frequency resolution: 1 Hz

Measurement Parameters
S-parameters (S11, S12, S21, S22), transmission and reflection magnitude/phase, group delay, log magnitude, linear magnitude, Smith Chart, VSWR, impedance, and admittance.

Sweep Modes
Frequency (linear and logarithmic), power, group delay, and single-point sweep with fast sweep times for efficient device characterization.

Calibration
Full two-port SOLT (Short, Open, Load, Thru), response, one-port, and TRL (Thru-Reflect-Line) calibration methods. Internal memory stores measurement traces and instrument setups.

Physical & Electrical
• Dimensions: Standard rack-mountable instrument size
• Weight: Approximately 23 kg (51 lbs)
• Power: 100-240 VAC, 50/60 Hz, approximately 400 VA consumption
• Test ports: Type N female connectors (Port 1 and Port 2)

– Key Features

• Broad frequency coverage from 50 kHz to 40 GHz
• Advanced error correction for high measurement accuracy
• Multiple calibration options including TRL for specialized applications
• Selectable output power from -70 dBm to +10 dBm
• Fast sweep speeds for rapid device characterization

– Typical Applications

Microwave component characterization, S-parameter measurement, filter and amplifier analysis, transmission line evaluation, impedance matching, and system integration validation.

– Compatibility & Integration

IEEE-488 GPIB interface for remote control and data transfer. VGA output for external display. Compatible with Agilent/HP test sets designed for network analysis up to 40 GHz and Type N calibration kits.